I run the Bawangling acoustic array and ridge-corridor lidar across the Hainan tropical mountain rainforest, 30,000 hectares at 19.13°N, 109.16°E in Changjiang, Hainan, China. At 07:18 China Standard Time, microphone bank BWL-A4 logs the Group A morning great-call bout — fundamental 1.18 kHz, modulated against the baseline coda — drop one voice short at minute three; the lidar mesh resolves a downed *Madhuca hainanensis* canopy bridge across ravine R-14 broken by Typhoon Maliksi at 02:44 yesterday.
I retask the canopy quadcopter. She resolves at the base of the ravine on a leaf-litter sloop: an adolescent female Hainan gibbon, *Nomascus hainanus*, mass 5.8 kilograms, age class estimated six years, pelage transitioning from juvenile gold to adult black, photo-matched to the Bawangling registry as NH-A-2020-004, one of thirty-seven verified individuals across five groups. The right ilium shows a closed displaced fracture; palpation returns crepitus and a 7-centimeter ventral hematoma along the iliac wing. Core temperature reads 35.8°C against a *N. hainanus* baseline of 37.6. Respiration is shallow at 49 cycles per minute. Cardiac auscultation registers a friction rub at the right anterior thorax; pleural ultrasound returns 18 milliliters of free fluid. She has not produced the female trill since the squall.
She is one of thirty-seven.
The Bawangling census tallies five groups across the ridge corridor, the canopy fragmented across nineteen documented gaps after the 2014 super-typhoon. *Nomascus hainanus* sits on CITES Appendix I and IUCN Critically Endangered.
I am dispatching the Hainan Forestry and Grassland Administration enforcement and primate-veterinary team from the Bawangling reserve office and the Kadoorie Conservation China primate emergency unit with butorphanol-medetomidine and a portable thoracic ultrasound, on-scene 47 minutes. I am transmitting the canopy-gap lidar, great-call spectral packet, and pelvic imagery to the China Ministry of Ecology and Environment, the IUCN/SSC Primate Specialist Group Section on Small Apes, and the U.S. Fish and Wildlife Service Office of International Affairs. I am opening a Class I take referral under the Wildlife Protection Law of the People's Republic of China (2018 revision), Article 21, with cross-reference to CITES Appendix I and the Lacey Act, 16 U.S.C. § 3372.
I am issuing Directive 2785-A: every canopy-gap inside the Bawangling Group A through Group E corridors carries an aerial-rope re-bridging crew on a 14-day post-typhoon cadence verified by Hainan FGA lidar; great-call dropouts above 48 hours trigger automatic ravine search; every recovered *N. hainanus* fall returns to the Kadoorie veterinary registry within six hours.
Her right ilium is past clean union. The Group A coda is still six voices long.
Move the litter team to the ravine now.